Integrated two-and four-wire telephone switching system



Sept 22, 1964 J. w. GoRGAs ETAL 3,150,236

INTEGRATED TWO- AND FOUR-WIRE TELEPHONE SWITCHING SYSTEM Filed Aug. 29. 1961 38 Sheets-Sheet 1 Sept. 22, 1964 J. w. GoRGAsl ETAI..

INTEGRATED TWQ- AND FOUR-WIRE TELEPHONE SWITCHING SYSTEM Filed Aug. 29. 1961 38 Sheets-Sheet 2 Sept. 22, 1964 J.V W. GORGAS ETAL INTEGRATED TWO- AND F OUR-WIRE TELEPHONE SWITCHING SYSTEM Filed Aug. 29. 1961 .58 Sheets-Sheet 3 ESSERE Sept. 22, 1964 J, w. GoRGAs ETAL 3,150,236

INTEGRATED TWO- AND FOUR-WIREJ TELEPHONE SWITCHING SYSTEM Filed Aug. 29, 1961 38 Sheets-Sheet 4 Sept. 22, 1964 J. w. GoRGAs l-:TAL

INTEGRATED Two- AND FOUR-WIRE TELEPHCNE swITcHING SYSTEM Filed Aug. 29, 1961 38 Sheets-Sheet 5 SePt- 22, 19.64 J. w. GoRGAs ETAL 3,150,236

INTEGRATED TWO- AND FOUR-WIRE TELEPHONE SWITCHING SYSTEM Filled Aug. 29, 1961 38 Sheets-Sheet 6 58 Sheets-Sheet 7 J. W. GORGAS ETAL Sept. 22, 1964 INTEGRATED TWO AND FOUR-WIRE TELEPHONE SWITCHING SYSTEM Filed Aug. 29. 1961 Sept 22, 1964 J. w. GoRGAs ETAL 3,150,236

INTEGRATED TWO- AND FOUR-WIRE TELEPHONE SWITCHING SYSTEM Filed Aug. 29, 1961 38 Sheets-Sheet 8 Sept. 22, 1964 J. w. @zot-rimA ETAL 3,150,236

INTEGRATED TWO- AND FOUR-WIRE TELEPHONE SWITCHING SYSTEM Filed Aug. 29, 1961 38 Sheets-Sheet 9 Sept. 22, 1964 J. w. GoRGAs ETAL INTEGRATED Two- AND FOUR-WIRE TELEPHONE SWITCHING SYSTEM Filed Aug. 29, k1961 38 Sheets-Sheet 10 mud.

58 Sheets-Sheet 11 J. W. GORGAS ETAL INTEGRATED TWO- AND FOUR-WIRE'TELEPHONE SWITCHING SYSTEM sept. 2z, 1964 Filed Aug. 29, 1961 ./owk New l Sept 22, 1964 J. w. GoRGAs ETAL 3,150,236

INTEGRATED Two- AND FOUR-WIRE TELEPHONE swTTcHING SYSTEM Filed Aug. 29. 1961 I 38 Sheets-Sheet 12 Sept. 22, 1964 J. w. GoRGAs ETAL 3,150,236

INTEGRATED TWO- AND FOUR-WIRE TELEPHONE SWITCHING SYSTEM Filed Aug. 29. 1961 38 Sheets-Sheet 13 Sept 2 2, 1964 J. w. GoRGAs ETAL. 3,150,236

INTEGRATED Two- AND FOUR-WIRE TELEPHONE swITcHING SYSTEM Filed Aug. 29. 1961 38 Sheets-Sheet 121 Sepf- 22, 1964 J. w. GoRGAs ETAL 3,150,236

INTEGRATED TWO- AND FOUR-WIRE TELEPHONE SWITCHING SYSTEM Filed Aug. 29, 1961 38 Sheets-Sheet l5 mv@ s OCE Omo

QB SEI SR Sog nog Sept. 22, 1964 3,150,236

INTEGRATED Two- AND FOUR-WIRE TELEPHONE swITcHING SYSTEM J. W. GQRGAS ETAL 38 Sheets-Sheet 16 Filed Aug. 29, 1961 Sept 22, 1964 J. w.4GoRGAs E'rAL 3,150,236

INTEGRATED TWO- AND FOUR-WIRE TELEPHONE SWITCHING SYSTEM Filed Aug. 29, 1961 58 Sheets-Sheet 18 New. u

sePt- 22, 1964 J. w. GoRGAs ETAL 3,150,236

INTEGRATED TWO- AND FOUR-WIRE TELEPHONE SWITCHING SYSTEM Filed Aug. 29, 1961 58 Sheets-Sheet 19 QLV SN Mk Mtb:

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INTEGRATED TWO- AND FOUR-WIRE TELEPHONE' SWITCHING SYSTEM 38 Sheets-Sheetl 2O Filed Aug. 29. 1961 

1. IN A CALL DATA RECORDING TELEPHONE SYSTEM, A SWITCHING CENTER COMPRISING A FIRST SWITCHING NETWORK SERVING A PLURALITY OF UNIQUELY IDENTIFIABLE TWO-WIRE STATIONS AND A PLURALITY OF UNIQUELY INDENTIFIABLE TWO-WIRE TRUNKS AND COMPRISING MEANS FOR SELECTIVELY INTERCONNECTING SAID TWOWIRE STATIONS AND SAID TWO-WIRE TRUNKS; A SECOND SWITCHING NETWORK SERVING A PLURALITY OF UNIQUELY IDENTIFIABLE FOUR-WIRE STATIONS AND A PLURALITY OF UNIQUELY IDENTIFIABLE FOUR-WIRE TRUNKS AND COMPRISING MEANS FOR SELECTIVELY INTERCONNECTING SAID FOUR-WIRE STATIONS AND SAID FOUR-WIRE TRUNKS, EACH OF SAID NETWORKS COMPRISING MEANS FOR PROVIDING CALL INFORMATION SIGNALS INCLUDING SIGNALS INDICATING THE INDENTITY OF THE ONE OF SAID TWO-WIRE STATIONS, FOURWIRE STATIONS, AND FOUR-WIRE TRUNKS WHICH REQUESTED A CALL CONNECTION; RECORDING MEANS; AND A RECORDER CONTROLLER COMPRISING REGISTER MEANS FOR REGISTERING SAID CALL INFORMATION SIGNALS, DETECTION MEANS SELECTIVELY RESPONSIVE TO SAID REGISTERED CALL INFORMATION FOR CONTROLLING SAID RECORDING MEANS TO RECORD DATA PERTAINING TO A CALL FOR WHICH A CALL CONNECTION IS REQUESTED BY ONE OF SAID TWO-WIRE STATIONS AND INCLUDING IDENTIFICATION OF SAID ONE OF SAID TWO-WIRE STATIONS, DATA PERTAINING TO A CALL FOR WHICH A CALL CONNECTION IS REQUESTED BY ONE OF SAID FOURWIRE TRUNKS, WHICH CONNECTION EXTENDS TO ANOTHER OF SAID FOUR-WIRE TRUNKS AND INCLUDING IDENTIFICATION OF SAID REQUESTING ONE OF SAID FOUR-WIRE TRUNKS. 